Metallic window structures



Nov. 10, 1959 Filed March 12, 1956 W. L. WALSH METALLIC WINDOWSTRUCTURES 4 Liz {L if J76 a if 4 Sheets-Sheet 1 IN VEN TOR.

WILLIAM L. WALSH his BY WWEQ+M ATTORNEYS Nov. 10, 1959 w. L. WALSH2,912,077

METALLIC WINDOW STRUCTURES Filed March 12, 1956 4 Sheets-Sheet 2INVENTOR. WILLIAM L. WALSH ATTORNEYS Nov. 10, 1959 w. L. WALSH METALLICWINDOW STRUCTURES 4 Sheets-Sheet 3 W Filed March 12, 1956 INVENTOR.WILLIAM L. WALSH ,AAW'W ATTORNEYS.

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Nov. 10, 1959 w. L. WALSH 2,912,077

METALLIC wmnow STRUCTURES Filed March 12, 1956 4 Sheets-Sheet 4 a 1% Z522? ii *22a 2; f6 f7 6! FIG. 6. a

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INVENTOR. WILLIAM L. WALSH BY WWQwM Is A TTORNEYS.

United States Patent ()fiice 2,912,077 Patented Nov. 10, 1959 METALLICWINDOW STRUCTURES William L. Walsh, Bronx, N. Y., assignor to S. H.Pomeroy Company, Inc., New York, N.Y., a corporation of New YorkApplication March 12, 1956, Serial No. 570,796

8 Claims. (Cl. 189-65) This invention relates to window structures andembodies, more particularly, improved components for providing a weathertight assembly for metallic window structures.

For many years, metallic window structures have been standard inbuilding operations involving large structures such as office buildingsand the like, the material of these metallic window units usually beingsteel. Recent- 1y, lighter metals such as aluminum have been found to beparticularly well suited to buildingstructures and window structureshave been made out of such materials. For example, in copendingapplication Serial No. 436,- 191, filed by Herman C. Knebel, a metallicwindow structure is disclosed which is particularly susceptible of beingmanufactured from the lightermetals such as aluminum.

In the above discussedmetallic window structures, the problem ofproviding weather resistant sealing elements between the sash and jambhas presented some difiiculty.

This is due primarily to the fact that such elements must weatherproofthe window structure and, at the same time, not impede sliding of thesash in double hung structures. It has been found in some instances thatthese two qualities are somewhat incompatible, good weather sealingrendering the window difiicult to operate. Accordingly, it is an objectof the present invention to provide structure serving to weatherproof'metallic windows.

It is another object of the invention to provide a weather strip sealerforming an effective seal with any selected surface it may engage.

It is still another object of the invention to provide a ribbed weatherstrip having a configuration localizing damage and providing anefiective seal when encountering resilient weather strip sealer or othersurfaces.

It is yet a further object of the invention to provide weather sealerelements for preventing entrance of dirt and moisture into a jamb pocketused to house a spring balance.

These and further objects of the invention are accomplished byselectively disposing at sliding points of contact between metal windowsash and supporting jamb structure novel weather strip in engagementwith resilient weather strip sealer. The former element is formed ofthin flexible metal and provided with longitudinal'ridges whichcooperate with the resilient Weather strip sealer. In addition, therigid weather strip may be employed in other applications such as in thehead and sill structure to render the entire double hung window weathertight.

A further feature of the invention resides in the use of a pocket sealermounted to cooperate withthe resilient weather strip sealer forsubstantially enclosing a pocket containing a spring balance. The pocketsealer is formed so that the sash flanges either displace it, in theevent it is in the form of pile, or fail to engage it due to itsconfiguration, in the event it is formed of a plastic strip material.

Metallic windows provided with the above weather sealing elementsprovide substantial protection against air leakage, maintain theirspring balances free of dirt and moisture and yet operate with an easenot achieved heretofore.

These and further objects and advantages of the invention will be morereadily understood when the following description is read in connectionwith the accompanying drawings in which:

Figure 1 is a plan view of a metallic window structure formed by aconventional double hung window;

Figure 2 is a partial longitudinal section, greatly enlarged, taken onthe view line 22 of Figure 1 looking in the direction of the arrows;

Figure 3 is a partial longitudinal section, greatly enlarged, taken onthe view line 3--3 of Figure 1 looking in the direction of the arrows;

Figure 4 is a partial transverse cross section, greatly enlarged, takenon the view line 44 looking in the direction of the arrows;

Figure 5 is a partial transverse cross section, greatly enlarged, takenon the view line 5-5 looking in the direction of the arrows;

Figure 6 is a fragmentary view, greatly enlarged, illustrating thecooperation between weather strip and weather strip sealer constructedin accordance with the present invention;

Figure 7 is a perspective view illustrating the weather strip shown inFigure 6; and

Figure 8 is a transverse section similar to Figure 4' showing a modifiedform of pocket sealer that may be employed in accordance with theprinciples of the present invention.

Referring to an illustrative embodiment of the invention with particularreference to Figure 1, an upper sash 10 and a'lower sash 11 are slidablymounted in conventional jamb structure formed by a head 12, a sill 13and jambs 14 and 15 joining the ends thereof. The foregoing structuremay be mounted in masonry or other building material in any conventionalmanner.

As shown in Figures 4 and 5, the jamb 14 is formed of side plates 16 and17, joined by a U-shaped support 18, an inner plate 19 and an angledouter plate 20 all formed integrally, for example, by extruding aluminumin a conventional manner. The inner extremities of the inner and outerplates 19 and 20 respectively carry channels 21 and 22 defined byinwardly extending flanges 23 and 24. Shoulders 23a and 24a on theflanges 23 and 24 extend into the channels 21 and 22 to retain elongatedpieces of weather strip sealer 25, as will be apparent from Figure 6.

The weather strip sealer 25, best shown in Figure 6, is formed of aresilient material such, for example, as natural or synthetic rubber, anylon type plastic, a high impact styrene or polyethylene, and comprisesa front section 26 having a substantially flat face 27, legs 28 and 29extending from the section 26 to form an interior recess 30. Notches 31are provided on the outer surfaces of the legs 28 and 29, portions 32between each lip of the notches 31 and the face 27 and the rear edges ofthe legs 28 and 29 being tapered. The rear lips of the notches 3-1engage the shoulders 23a and 24a to retain the sealer 25 in the channels21 and 22.

In the central plane of the jamb a parting bead 34 'is supported by aU-shaped snap bracket 35 cooperating with ridges 18a on the U-shapedsupport 18, which joins the side plates 16 and 17. Integral with thebracket 35 are pocket closure plates 36 and 37 extending obliquely tothe transverse plane of the inner extremity of the parting bead 35 andthen extending parallel to the side plates 16 and 17 to lie in spacedrelation to the adjacent edges of the inner and outer plates 19 and 20,respectively. I

On the parallel portion of each of the plates 36 and 37 are respectivelyformed channels 38 and 39 in which are secured pocket sealer strips 40.This construction minimizes the entrance of dirt and moisture intopockets 41 and 42 which are formed in the jamb 1'4 to receive springbalances 43 and 44 (Figure It will be observed that :the main body ofthe pocket sealers 40 abut the plates 36 and 37, a thinner and flexibletapered portion 45 on each sealer 40 extending obliquely to a .positionadjacent to the weather strip sealer 25 from a pro trusion 46 found onthe ends of the plates 36 and 37.

A sash balance connector 47 joins the spring balance 43 to the sash 10.,as shown in Figure -4. Therefore, when the sash is raised, the connector47 will displace a portion 45a of the tapered-section'45 of the pocketsealer '40, as clearly indicated :in Figure 4. However, since the sashconnectors 47 do not travel along the upper section of the pockets 41and 42, the pocket sealer 40 may be formed to enclose the upper sectionsof the pockets to an even greater extent as illustrated in Figure 5. Inother words, since the balance connectors 47 are joined to the loweredges of the sashes 10 and 11, they will not interfere with modifiedpocket sealers 40a in the upper portions of the jambs 14 and 15.Accordingly, the pocket sealer 4011, similar in most respects to thesealer 40, may be employed in these instances, the sealer 40a includinga tapering portion 45a carrying an angled finger 45b further enclosingits corresponding pocket and minimizing the entrance of moisture anddirt.

It will be apparent that the assembly constituted by the parting bead34, the bracket 35 and the plates 36 and 37 may be snapped into positionon the support 18 to form the substantially enclosed parallel channelsor pockets 41 and 42 within which are positioned the spring balances '43and 44, the pocket sealers '40 and 40a assisting in enclosing thesechannels.

Further examining the parting bead 34, it will be observed that it isformed in a generally T-shaped section to provide channels 48 and 49(Figure 4,) formed with inwardly extending flanges 50 and 51,respectively, which receive elongated pieces of the weather strip sealer25.

The sash structure adapted to be used in connection with theabove-described jamb structure is clearly illustrated in Figures 4 and 5and includes the upper and lower sashes 10 and 11. The sides of each ofthe sashes l0 and 11 include recesses 52 and 53 respectively formed withshoulders 54 and 55, flanges 56 and 57 extending therefrom parallel tothe planes defined by the outer vertical edges of the sashes 10 and 11but slightly removed towards the central vertical sash plane.

Secured in the recesses 52 and 53 are elongated pieces of weather strip58, best illustrated in Figure 7, formed of a thin strip of flexible andspringy metal such, for example, as stainless steel. Preferably, oneedge of the strip is bent back on itself to form a hem 59 while theother side of the strip is bent to form an obtusely angled section '60.A further bend in the strip provides for an obliquely extending section61, the sections '60 and 61 cooperating with the recesses 52 and 53 andthe shoulders 54 and 55 to anchor the weather strip 58 in the sashes 10and 11. A plurality of longitudinally extending ridges 62 are formed inthe major surface of the weather strip 58, as clearly shown in Figure 7.An exemplary strip 58 may be formed of type 18-8 stainless steel sheeton the order of .005 inch thick, the ridges 62 being roll formed andhaving a height of .008 inch with a V inch width at the strip surface.

The number of ridges 62 provided is dependent upon the function that thestrip 58 must perform. These ridges 62 serve several purposes since theyprovide effective lines of contact with cooperating surfaces, localizeany damage in the strip to a very small area and add rigidity to thestrip. Thus, without the ridges 62, damage to the main body of the stripnear its angled section 60 results in bending of the major strip surfacefor a substantial portion of the distance to the hem 59 due to thethinness and flexibility of the element. In addition, the line contactafiorded by the ridges "62 greatly reduces sliding friction between thestrip 58 and its cooperating surfaces, this feature making possible aneffectively sealed double hung window that may be easily raised andlowered. Finally, the ridges 62 are 'efiec'tive to add rigidity to thestrip 58 so that it will not .p rovide a wavelike surface but willinsure an almost completely linear configuration.

As clearly show-n Figure 6, the weather strip 58, due to the obtuseangle between the main body of the strip 58 and the section 60, issecured at one edge by the section 60 and the recess 52 or 53, sucharrangement providing unimpaired movement of the other edge of the stripand biasing'oif the ridges 62 against the substantially flat face 27 ofthe weather strip sealer 25, the ridges 62 providing a pair of linecontacts therebetween in order to effect an efficient weather resistantseal between the sash and jamb'st-ructure. It will be apparent fromFigure 6 that since the weather strip 58 extends beyond the sealer 25,small differences in the sizes of the sashes 10 and 11 and the -jambstructure will not interfere with the sealing action. If desired, theridges 58 may be more closely spaced or the face 27 :laterally extended,or both, in order to insure that two or more of the ridges 62 engage the'sealer 25. However, satisfactory sealing between these elements isachieved when only one of the ridges 62 engages the face 27 and ofcourse, this provides an absolute minimum of sliding friction betweenthese elements.

The plastic pocket sealers 40 of Figure 4 greatly reduce the amount ofdirt and moisture entering the pockets 41 and 42. However, due to thefact that the sash balance connectors 47 must travel along the lowerportion of the jambs 14 and 15 and, accordingly, the lower sections ofthe pockets 41 and 42, the additional fingers 45b which serve to furtherenclose the .pockets 41 and 42 may not be employed in this instance.Even with the use of the sealers 40a as shown in Figure '5, theadditional flexible fingers '47 must be spaced from the weather strip 58for proper operation o'f the sashes 10 and 11. Another form of pocketsealer may be used to improve the closure of the pockets-41 and 42 incertain instances.

More particularly, Figure 8 illustrates a modified form of pocket sealer'63 fitting the recesses 38 and 39 and formed of a suitably shaped stripof plastic 63 which receives pile 64 in a slot 65, the pile 64 extendinginto engagement with the weather strip sealer 25. The shoulder 46 at theend of the plates 3'6 and 37 bears against the pile 64 and tends todistribute it evenly in a longitudinal direction. With this arrangement,the sash flanges 56 engage the pile 64 and due to its nature, it willsealably envelop these elements. Furthermore, the sash balanceconnectors 47 will displace a portion of the pile 64 but will notinterfere with its sealing function.

Referring next to Figure 2, a transverse recess '66 in the upper portionof the head 12 receives an elongated piece of Weather strip 67 providedwith eight ridges 68, two on each side of the strip. Shoulders 69 in there cess 66 function to retain the strip 67, the outwardly extendingfingers 68 sealably engaging a vertical surface 70 on the sash 10.

A piece of the weather strip sealer 25 is positioned in a recess 71 inthe lower portion of the head 12, shoulders 72 in the recess 71retaining the sealer 25. It will be observed that the strip 25 isoriented with its flat surface 27 against the bottom of the recess 71, apiece of weather strip 58 fitting the cavity 30 in the strip '25.Therefore, the ridges 62 found on the strip 58 bear against a verticalflat outside surface 73 on the sash 10 to seal joint effectively. 7

Considering the manner in which the lower sash 11 is sealed to the sill13 with particular reference to Figure 3, -a recess 74 extendinglongitudinally along a bottom rail 75 of the lower sash 11 receives apiece of weather strip 76 retained therein by shoulders 77 and carryingdownwardly extending ridges 78 sealably engaging a horizontal surface 79on the sill 13. A further longitudinal recess 80 in the rail 75 receivesa weather strip 580: similar to the strip 58 but provided with onlythree longitudinal ridges 62.

When the sash 11 is fully lowered, the ridges 78 are forced against thesurface 79 to seal this joint effectively. On the other hand, before thesash 11 is completely closed the ridges 62 Will engage a substantiallyvertical surface 81 on the sill 13 and by the time the sash 11 iscompletely closed, all three of the ridges 62 will engage the surface 80to seal this joint effectively. This seal is a substantial improvementover previous seals, such as those provided by resilient plastic weatherstrip, since it substantially eliminates air leakage resulting from dirtand foreign matter which accumulate on a horizontal sill surface butfails to cling to the vertical surface 81. Furthermore, any foreignmatter on the surface 81 may interfere with one of the ridges 62 butanother ridge 62 will provide an effective seal. Another advantageresides in the fact that even if the sash 11 is not tightly closed, thestrip 58a will effectively seal the joint. Of course, any damage to thestrip 581: is minimized due to the ridges 62.

It will be apparent from the foregoing that a weather tight metallicwindow structure has been provided with elements effectively sealing thespring balance pockets from dirt and moisture to reduce maintenancecosts. Of course, while metal structure has been referred to indescribing an illustrative embodiment of the invention, certain plasticmaterials may serve satisfactorily in view of the facility with whichthey may be extruded. Moreover, it Will be understood that theabove-described embodiments of the invention are illustrative only andmodifications thereof will occur to those skilled in the art. Therefore,the invention is not to be limited to the specific apparatus disclosedherein but is to be defined by the appended claims.

I claim:

1. A metallic window structure comprising a jamb structure having side,inner and outer plates, upper and lower sashes associated with the jambstructure, a parting bead intermediate the inner and outer plates, meansto removably support the parting bead on the side plate and spacedbetween the inner and outer plates, a weather strip sealer formed ofresilient material and including a substantially fiat face, said sealerbeing mounted on the inner surface of each of the inner and outerplates, an elongated thin metallic weather strip formed with a pluralityof longitudinal ridges, means for securing said weather strip to theopposite sides of the upper and lower sashes to urge the ridges againstthe flat face of the sealer, said strip extending in overlappingrelationship to the respective inner and outer plates, closure platesextending laterally from the parting bead towards the inner and outerplates to form pockets in the jamb structure, a flexible pocket sealerextending laterally from said closure plates to a position adjacent tothe weather strip sealer, said pocket sealer minimizing entry of dirtand moisture into the jamb pockets.

2. In metallic window structure, jamb structure having side, inner andouter plates, upper and lower sashes associated with the jamb structure,a parting bead intermediate the inner and outer plates, means toremovably support the parting head on the side plate and spaced betweenthe inner and outer plates, weather strip means :on the inner plate, theouter plate, the parting bead and the sashes to seal the sash-jambcontact surfaces, closure plates extending laterally from the partingbead towards the inner and outer plates to form sash balance receivingpockets in the jamb structure, a flexible pocket sealer extendinglaterally from said closure plates to a position adjacent to the weatherstrip means on the inner and outer plates, said pocket sealer minimizingentry of dirt and moisture into the jamb pockets, and attachment meansadapted to be joined to a sash balance extending from the sashes intothe pockets, said attachment means displacing the fiexible pocket sealerat its point of entry into the pocket.

3. Structure as defined in claim 2 in which the pocket sealer comprisesa strip of resilient material secured on one side to said closureplates, the other side of the pocket sealer being tapered to a reducedthickness as it extends to a position adjacent to the weather stripmeans on the inner and outer plates.

Structure as defined in claim 3 in which the pocket sealer is providedwith another tapered section extending at an angle from said one taperedsection for further enclosing the jamb pockets.

5. Structure as defined in claim 2 in which the pocket sealer comprisesa resilient strip mounted on the closure plates, said last-mentionedstrip carrying pile which extends to a position adjacent to the weatherstrip means on the inner and outer plates.

6. A metallic window structure comprising a jamb structure having side,inner and outer plates, upper and lower sashes associated with the jambstructure,a parting bead intermediate the inner and outer plates, meanssupporting the parting head on the side plate and spaced between theinner and outer plates, inner surfaces on the inner and outer platesforming one group of surfaces, opposite sides on each of the upper andlower sashes forming another group of surfaces, a weather strip sealerformed of resilient material and includin a substantially flat face,said sealer being mounted on one of the groups of surfaces, an elongatedthin flexible and springy metallic weather strip formed with a pluralityof longitudinal ridges, and means securing one edge of said weatherstrip to the other of the groups of surfaces, said securin meansproviding unimpaired movement of the other edge of the Weather strip andbiasing of the ridges of the Weather strip against the flat face of thesealer.

7. In metallic window structure including movable sash carried by jambstructure with weather resistant elements disposed to form surfaces ofsliding contact therebetween, said Weather resistant elements formingeach of the surfaces comprising an elongated weather strip sealer formedof resilient material including a substantially flat face, a pair ofshoulders disposed on opposite sides of the sealer and displacedrearwardly of its flat face, a longitudinal recess in the jamb structurereceivin said shoulders to secure the sealer therein, an elongated thinmetallic weather strip formed with a plurality of longitudinal ridges,and means securing said weather strip to the sash to urge the ridgesagainst the flat face of the sealer.

8. An elongated weather strip for metallic window structure formed ofthin flexible and springy sheet metal for sealing window structurecomprising a single major surface formed with at least threelongitudinally extending shallow and narrow ridges parallel to the edgesof the major surface, a hem alon one side of the major surface, and abent portion on the other side of the major surface for anchoring theWeather strip in a recess in the Window structure, said bent portionconsisting of a V-shaped section with one leg of the section at an angleon the order of degrees to the major surface and the other leg extendingback towards the underside of the ridges.

References ited in the file of this patent UNITED STATES PATENTS1,020,993 Lane Mar. 26, 1912 1,270,869 Relling July 2, 1918 1,477,225Macklanburg Dec. 11, 1923 1,781,382 Goellner Nov. 11, 1930 1,957,592Heid May 8, 1934 2,050,369 Oftedal et al. Aug. 11, 1936 2,111,224 Peremiet al Mar. 15, 1938 2,299,651 Peremi et a1 Oct. 20, 1942 2,752,015 NolanJune 26, 1956

